UndenyAI denial appeal letter generator
Enter the denial code and payer; get a structured, payer-ready appeal letter. The letter uses placeholders for patient details — fill them in locally. Nothing you type is stored.
Your appeal letter will appear here. Review every detail and fill in the bracketed placeholders before sending.
Informational only — not legal, medical, or billing advice. Always verify against current payer policy before submitting.
Frequently asked questions
- Is the appeal letter generator free?
- Yes — it's completely free with no login or credit card. Generate as many payer-ready appeal letters as you need.
- Does it store patient information (PHI)?
- No. The generator never asks for or stores patient names, dates of birth, or member IDs. It produces a letter with bracketed placeholders you fill in locally.
- Which denial codes and payers does it work with?
- Any CARC/RARC denial code (for example CO-45, CO-97, or PR-204) and any payer such as Aetna, Cigna, UnitedHealthcare, or Blue Cross Blue Shield. Always verify the final letter against current payer policy before submitting.
Founding members · limited spots
Imagine this for every denial
Undeny's full platform pulls denials straight from your clearinghouse and drafts appeals automatically. Join the waitlist for early access.
- Free denial audit at launch — we find exactly what's recoverable
- Locked-in founding pricing, before public rates
- First access — limited to the first 100 practices
Free denial audit at launch · founding pricing · no credit card · unsubscribe anytime.